Make sure to review the order details and double-check that you're creating a call debit spread.

In the order tickets for both the long and short call options, specify the number of contracts you want to trade. Click on the bid price of the call option to open a sell order ticket. Locate the specific call option you want to use as the short leg. To create a call debit spread, you'll also need to sell a call option with a higher strike price than the one you're buying. Step 5: Choose the Call Option for the Short Leg

Click on the ask price of the call option to open a buy order ticket. The long leg is the call option you're buying. Within the options chain, locate the specific call option that you want to use as the long leg of your call debit spread. Step 4: Choose the Call Option for the Long Leg After selecting the stock, its options chain will be displayed. Type in the name or symbol of the underlying stock for which you want to buy a call debit spread. In the trading section, you'll find a search bar. Click on the 'Trade' tab at the top of the screen to access the trading section. Once you have an account, log in to the thinkorswim® trading platform.Īfter logging in, you'll be taken to the thinkorswim® platform. If you don't have a thinkorswim® account, you'll need to sign up for one. Here is how to buy a call debit spread (aka a call vertical spread) on thinkorswim®: Step 1: Open and Log In to Your thinkorswim® Account